It is increasingly common for structural drawings and schedules to reference IG Windposts by name. Whether the specification calls for IG U Windposts, IG LP Windposts or IG DU Windposts, many contractors assume that only IG products can be used to remain compliant.
In reality, this is rarely the case. In most projects, IG Windposts are referenced as a benchmark for performance, not as a sole-source requirement. At Windpost.co.uk, we manufacture and supply windposts that are fully equivalent to IG Windposts, while offering a more cost-effective and flexible solution for site teams.
What does an IG Windpost specification actually require?
When an engineer specifies an IG U, LP or DU windpost, they are defining the type of windpost and its structural role, not necessarily mandating the IG brand itself. The key requirements are typically:
- Adequate resistance to lateral wind loads
- Suitable stiffness and deflection performance
- Compatibility with cavity wall construction
- Compliance with recognised UK standards
These requirements can be met by equivalent windposts from alternative manufacturers, provided the performance criteria are satisfied. This is exactly where Windpost.co.uk products offer a practical alternative to IG Windposts.
Direct equivalents to IG U, LP and DU Windposts
Windpost.co.uk supplies a full range of windposts designed to act as direct equivalents to the most commonly specified IG Windposts. Our windposts perform the same structural function as the corresponding IG Windpost, allowing contractors to meet the intent of the specification without unnecessary cost. To find an equivalent option, try our product chooser tool.
Equivalent performance without the IG price premium
IG Windposts are well known across the industry, but brand recognition often comes with a higher price tag. On many projects, that additional cost delivers no tangible benefit once performance requirements are met.
Windpost.co.uk windposts are engineered specifically to provide equivalent strength and performance to IG Windposts, while remaining competitively priced. For projects requiring multiple U, LP or DU windposts, the cost savings can be substantial — helping to protect margins without compromising structural integrity.
Reduced lead times compared to IG Windposts
Another common challenge with IG Windposts is lead time. Delays in sourcing specified IG products can quickly disrupt masonry programmes and create knock-on delays elsewhere on site.
Because Windpost.co.uk focuses solely on windposts, we are able to offer shorter lead times and reliable availability across our standard range. This makes our IG-equivalent windposts particularly attractive where programme certainty is critical.
Clear technical support, not just a catalogue
Switching from IG Windposts to an equivalent alternative should never feel like guesswork. At Windpost.co.uk, we provide straightforward technical guidance to ensure the selected windpost matches the performance requirements of the original IG specification.
If a drawing references an IG U, LP or DU Windpost, we can quickly confirm the appropriate Windpost.co.uk equivalent and supply the correct solution with confidence.
A sensible alternative to specified IG Windposts
Using Windpost.co.uk products in place of IG Windposts is not about cutting corners — it is about understanding specifications properly and selecting a product that delivers the same performance at better value.
With direct equivalents to IG U, LP and DU Windposts, competitive pricing, faster supply and practical technical support, Windpost.co.uk offers a smarter approach for contractors looking to meet specification requirements without overpaying for a brand name.








